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Surface-enhanced charge-density-wave instability in underdoped Bi2Sr2-xLaxCuO6+δ

Author

Listed:
  • J. A. Rosen

    (University of British Columbia)

  • R. Comin

    (University of British Columbia)

  • G. Levy

    (University of British Columbia
    Quantum Matter Institute, University of British Columbia)

  • D. Fournier

    (University of British Columbia)

  • Z.-H. Zhu

    (University of British Columbia)

  • B. Ludbrook

    (University of British Columbia)

  • C. N. Veenstra

    (University of British Columbia)

  • A. Nicolaou

    (University of British Columbia
    Quantum Matter Institute, University of British Columbia)

  • D. Wong

    (University of British Columbia)

  • P. Dosanjh

    (University of British Columbia)

  • Y. Yoshida

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • H. Eisaki

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • G. R. Blake

    (Materials Science Centre, University of Groningen)

  • F. White

    (Agilent Technologies UK Ltd.)

  • T. T. M. Palstra

    (Materials Science Centre, University of Groningen)

  • R. Sutarto

    (Canadian Light Source, University of Saskatchewan)

  • F. He

    (Canadian Light Source, University of Saskatchewan)

  • A. Fraño Pereira

    (Max Planck Institute for Solid State Research
    Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Y. Lu

    (Max Planck Institute for Solid State Research)

  • B. Keimer

    (Max Planck Institute for Solid State Research)

  • G. Sawatzky

    (University of British Columbia
    Quantum Matter Institute, University of British Columbia)

  • L. Petaccia

    (Elettra Sincrotrone Trieste)

  • A. Damascelli

    (University of British Columbia
    Quantum Matter Institute, University of British Columbia)

Abstract

Neutron and X-ray scattering experiments have provided mounting evidence for spin and charge ordering phenomena in underdoped cuprates. These range from early work on stripe correlations in Nd-LSCO to the latest discovery of charge-density-waves in YBa2Cu3O6+x. Both phenomena are characterized by a pronounced dependence on doping, temperature and an externally applied magnetic field. Here, we show that these electron-lattice instabilities exhibit also a previously unrecognized bulk-surface dichotomy. Surface-sensitive electronic and structural probes uncover a temperature-dependent evolution of the CuO2 plane band dispersion and apparent Fermi pockets in underdoped Bi2 Sr2-x Lax CuO6+δ (Bi2201), which is directly associated with an hitherto-undetected strong temperature dependence of the incommensurate superstructure periodicity below 130 K. In stark contrast, the structural modulation revealed by bulk-sensitive probes is temperature-independent. These findings point to a surface-enhanced incipient charge-density-wave instability, driven by Fermi surface nesting. This discovery is of critical importance in the interpretation of single-particle spectroscopy data, and establishes the surface of cuprates and other complex oxides as a rich playground for the study of electronically soft phases.

Suggested Citation

  • J. A. Rosen & R. Comin & G. Levy & D. Fournier & Z.-H. Zhu & B. Ludbrook & C. N. Veenstra & A. Nicolaou & D. Wong & P. Dosanjh & Y. Yoshida & H. Eisaki & G. R. Blake & F. White & T. T. M. Palstra & R., 2013. "Surface-enhanced charge-density-wave instability in underdoped Bi2Sr2-xLaxCuO6+δ," Nature Communications, Nature, vol. 4(1), pages 1-7, October.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2977
    DOI: 10.1038/ncomms2977
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